Pith Number

pith:RAFN5YTQ

pith:2009:RAFN5YTQMYQDXXFG7GBRIBOCWS

not attested not anchored not stored refs pending

Current status of gravitational-wave observations

Gianluca M Guidi, Graham Woan, John T Whelan, Patrice Hello, Stephen Fairhurst

arxiv:0908.4006 v1 · 2009-08-27 · gr-qc

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RAFN5YTQMYQDXXFG7GBRIBOCWS}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:30:36.969189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

880adee27066203bdca6f9831405c2b48d8b4fd3cd2d1156417e0cebca40a60d

Aliases

arxiv: 0908.4006 · arxiv_version: 0908.4006v1 · doi: 10.48550/arxiv.0908.4006 · pith_short_12: RAFN5YTQMYQD · pith_short_16: RAFN5YTQMYQDXXFG · pith_short_8: RAFN5YTQ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/RAFN5YTQMYQDXXFG7GBRIBOCWS \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 880adee27066203bdca6f9831405c2b48d8b4fd3cd2d1156417e0cebca40a60d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75bffc5571d396cf18affddab33815c20a9a9c4fdb941fc9ddf5719621e0b10c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-08-27T13:07:31Z",
    "title_canon_sha256": "457c96cc37d3c3ea59ec0eb8cd00b1adb09d49e263f3eb82eee5548271ecaaed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.4006",
    "kind": "arxiv",
    "version": 1
  }
}